Author
Topic: Coax Indicator, designed by W.K.Todd (Read 4393 times)

I have one that I bought at the NAMES show and then didn't use for a few years. Set it up fairly close to center in a hole flip on the spindle and dial in the table til its centered, done. I bought it from little machine shop & use it at work a lot now.Art

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"The beautiful thing about learning is that no one can take it away from you" B.B. King

Hi everybody,here a picture of the standard low cost indicator and the version Bill has designed.This big difference is the reason why I have started the build.If someone is interested, here a video of making the rocker with Fusion360 CAM and my mini CNC mill.

And if I am interpreting the drawings correctly, the tip of the dial indicator is pushed back by that 45 degree taper on the center shaft, as the shaft is pulled by? Any chance you could do a cross-section view of the assembled unit in the 3D model? Its tough to visualize how it all comes together.Thanks!Chris

I have got it nearly.I do have a basic run out of 0,05 mm, which, I think, is caused by my laziness.I did not follow Bills advice to turn the shaft in one piece between centers.My shaft is made by a 15 mm silver steel bar of the shelf.At the turning operation, I could already measure a run out of 0,04 mm, which is now still visible plus some additional tolerances. I will make the probe holder now and will see if I can work with this basic run out.